Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/10403#discussion_r49266438
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala ---
@@ -90,6 +90,15 @@ abstract class JdbcDialect extends Serializable {
}
/**
+ * Parses a table name in case of containing special characters like .
seperating database name
+ * followed by table name (eg "some database"."some-table-name") or
+ * in case it contains characters that require quotes (e.g. space).
+ */
+ def parseTableName(tableName: String): String = {
--- End diff --
The method contract here is confusing to me: is this supposed to introduce
an additional layer of quotes? I find it confusing to couple both the
responsibilities of quoting identifiers and parsing table names from a
schema-qualified name.
I'd prefer to have this return just the table name, unquoted, and leave it
up to later components to escape it. If you _do_ think we should do quoting
here, please explain that part of the API contract in the Scaladoc.
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